Answers

Add 72/20 and 72/54

1^st number: 3 12/20, 2^nd number: 1 18/54

72/20 + 72/54 is 74/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   72/20 = 72 × 27/20 × 27 = 1944/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   72/54 = 72 × 10/54 × 10 = 720/540
4. Add the two like fractions:
   1944/540 + 720/540 = 1944 + 720/540 = 2664/540
5. 2664/540 simplified gives 74/15
6. So, 72/20 + 72/54 = 74/15
   In mixed form: 414/15

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